柯林斯词典baseball cap (baseball caps) 1. N-COUNT A baseball cap is a close-fitting cap with a curved part at the front that sticks out above your eyes. 棒球帽 He often wore a baseball cap. 他经常戴顶棒球帽。 返回 baseball cap剑桥词典a tightly fitting hat , originally worn by baseball players , with a long flat piece at the front to protect the eyes from the sun 棒球帽 返回 baseball cap